# Angle water valve INVENA ZK-50-020 DN-20 with union nut

**URL:** https://aio.lv/en/product--invena-zk-50-020--11827885
**Data updated:** 2026-03-09 11:17 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** INVENA
**Manufacturer code:** ZK-50-020
**EAN:** 5907798739295
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--invena-zk-50-020--11827885

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

Angle water valve INVENA ZK-50-020 DN-20 is a plumbing fitting designed for controlling water flow in DN-20 (20 mm) pipe installations. Equipped with a union nut (screw coupling) for easy connection and maintenance, it is suited for residential and commercial heating and water supply systems where a compact angled shut-off is required.

## Long description

Angle water valve INVENA ZK-50-020 DN-20 with union nut is a compact angled shut-off valve designed for DN-20 (20 mm) plumbing installations. It provides manual control of water flow in heating and water supply systems and features a union nut (screw coupling) to simplify installation and future maintenance. The angled body orientation saves space and allows installation where straight valves are impractical.
Advantages
The valve's angled design allows convenient installation in tight spaces and behind radiators. The union nut enables quick connection to piping without the need to rotate the entire valve body, which reduces stress on fittings during assembly and disassembly. Constructed from corrosion-resistant materials suitable for potable water and heating systems, the valve offers reliable shut-off performance and straightforward operation.
Suitable for
 Domestic and commercial heating systems with DN-20 pipework
 Cold and hot water supply installations
 Radiator connections where compact angled shut-off is required
 Maintenance points requiring easy disconnection via union nut
Key specifications
 Connection size: DN-20 (20 mm)
 Type: angle shut-off valve
 Connection method: union nut (screw coupling)
 Orientation: 90° angled body
 Operation: manual turn handle
 Application medium: hot and cold potable water, central heating
 Material: corrosion-resistant metal suitable for plumbing use
How to use
Before installation, isolate the system and drain the section of pipe where the valve will be fitted. Position the valve so the angled outlet aligns with the radiator or downstream piping, and hand-tighten the union nut onto the corresponding threaded fitting; finish tightening with appropriate tools, avoiding excessive force. Operate the valve by turning the handle to open or close the water flow. For maintenance, close the valve, relieve residual pressure, and unscrew the union nut to disconnect the valve without rotating adjacent pipework.
Usage recommendations
Install the valve in accordance with local plumbing codes and use thread sealant or tape on threaded joints if required. Avoid overtightening the union nut to prevent thread damage. Periodically cycle the valve to prevent sticking and inspect seals for wear; replace seals or the valve if leaks occur. For installations in systems with aggressive water chemistry, verify material compatibility to prolong service life.

## FAQ

### How much does the Angle water valve INVENA ZK-50-020 DN-20 cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 24.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All INVENA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized INVENA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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